LED bulb



FIG. 1 is a perspective view of a first embodiment of an LED bulb;

FIG. 2 is a side view of the first embodiment;

FIG. 3 is a top view of the first embodiment;

FIG. 4 is a bottom view of the first embodiment;

FIG. 5 is a perspective view of a second embodiment of an LED bulb;

FIG. 6 is a side view of the second embodiment;

FIG. 7 is a top view of the second embodiment; and,

FIG. 8 is a bottom view of the second embodiment.

The broken lines illustrating portions of the LED bulb form no part of the claimed design. 

CLAIM The ornamental design for an LED bulb, as shown and described. 